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author | Punit Agrawal <punit.agrawal@arm.com> | 2017-06-08 18:25:26 +0100 |
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committer | Will Deacon <will.deacon@arm.com> | 2017-06-12 16:04:28 +0100 |
commit | f02ab08afbe76ee7b0b2a34a9970e7dd200d8b01 (patch) | |
tree | 03640d83e1c6c1614ef4eafcb121641299896d24 /virt/kvm | |
parent | arm64: ftrace: fix building without CONFIG_MODULES (diff) | |
download | linux-dev-f02ab08afbe76ee7b0b2a34a9970e7dd200d8b01.tar.xz linux-dev-f02ab08afbe76ee7b0b2a34a9970e7dd200d8b01.zip |
arm64: hugetlb: Fix huge_pte_offset to return poisoned page table entries
When memory failure is enabled, a poisoned hugepage pte is marked as a
swap entry. huge_pte_offset() does not return the poisoned page table
entries when it encounters PUD/PMD hugepages.
This behaviour of huge_pte_offset() leads to error such as below when
munmap is called on poisoned hugepages.
[ 344.165544] mm/pgtable-generic.c:33: bad pmd 000000083af00074.
Fix huge_pte_offset() to return the poisoned pte which is then
appropriately handled by the generic layer code.
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Woods <dwoods@mellanox.com>
Tested-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'virt/kvm')
0 files changed, 0 insertions, 0 deletions